MAWP Limited by Nozzle Reinforcement

This isn't the first time we have heard of odd results when using PVElite. If they have a help line, that should be the best place to ask. (Well, it should be, but it may not actually be.)

You must be working under a deadline. I just love deadlines. I especially like the whooshing sound they make as they fly by.

Do your own homework.

You do not have to do anything unless a Specification (customer or local) requires that "THE MAWP SHALL NOT BE LIMITED BY A NOZZLE" as ASME code Section VIII, Division 1 does not. It sounds like the additional thickness you are adding to the re-pad is outside the limit. Otherwise, did you try to maximize the re-pad OD ? How about using Long Weld Necks (expensive) ? How about inserting a thicker shell section at the nozzle ?

Are you familiar with ASME Section VIII? It's good practice to read that before designing a vessel to it. I'm guessing that you've used the maximum reinforcing area and are still limited by that nozzle. I can direct you to which section but I think it would be best to read most (if not all) of the UG section in there.